Easy to assemble and use
Onboard detection indication
The effective distance range of 2cm to 80cm
A preset knob to fine-tune distance range
If there is an obstacle, the indicator lights on the circuit board.
The module features a 3 wire interface with Vcc, GND and an OUTPUT pin on its tail. It works fine with 3.3 to 5V levels. Upon hindrance/reflectance, the output pin gives out a digital signal (a low-level signal). The onboard preset helps to fine-tune the range of operation, the effective distance range is 2cm to 80cm.